So the OP was an /r/UnpopularOpinions post saying that people who use “would of” instead of “would’ve” deserve essentially ten years of torture. There was a comment that simply said “Prescriptivism” and somebody replied (the post I linked to), basically saying that the dude calling it prescriptivism is a bad argument because the only alternative to that is descriptivism, which is just people’s excuse for not speaking “correctly.”

It's most important to follow the lowest price on the shop wizard. Go to the shop wizard, refresh a few times (because it doesn't show the same subsection of user shops each refresh) and choose a price that's somewhat lower than the lowest price you saw.

JN prices are based on the shop wizard, but they aren't updated constantly.

It's not that unheard of, though usually it's just changing small references to something more up-to-date - tape players become cd players become mp3 players become music streaming over a phone, and the music changes accordingly. In the case of the YW books she made two huge updates. First, she set the books all firmly in the 2000s, with the kids aging at the rate of one year per year and the tech in the earlier books updated. (Previously the kids updated at the rate of plot, and the earlier books were a few months earlier in book time but several years earlier in reference time, and those references are painfully outdated now - and not just "they listen to old music" or "tape players" but "an entire book focuses around advanced outdated technology".)

Secondly, in response to constructive criticism by autistic readers, she dramatically rewrote A Wizard Alone to be less ablist. This never happens, and the changes are a huge improvement.